The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Announced by the festival, per sfoutsidelands.com[3]: "SAVE THE DATE! See you in the park August 6-8, 2027".
Background on the festival: founders, stage names, Golden Gate Park site.[1]
The festival's own history page: "2026 marks 18 years of Outside Lands", with lineups back to 2008.[1]
Review of the previous edition (August 7-9, 2026): about 220,000 people in Polo Field on the first weekend of August.[1]
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.